Window-shade adjuster



Aug. 26, 1924. J. w. DAWSON WINDOW SHADE ADJUSTER Fi led May 21, 1925 2 Sheets-Sheet 1 1a 19 ma s,

Aug. 26,-.1924; 1,506,223

7 J. w. DAWSON WINDOW SHADE ADJUSTER Filed my 21. 1925 2 Shasta-Sheet 2 176721 07" fa .5 .jawaarz Patented Aug. 26, 1924.

UNITED STATES PATENT QFFICE',

JAMES W. DAWSON, OF CHICAGO, ILLINOIS, ASSIGNOR- TO JAMES A. HEDGES AND HOWARD E. HEDGES, FORMING THE COPARTNERSHIP OF I. A. HEDG-ES & COM.-

PANY, OF CHICAGO, ILLINOIS.

WINDOW-SHADE ADJUSTER.

Application filed May 21,

To all whom it may concern:

Be it known that I JAMEs W. DAWSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in VVindow-Shade Adjusters, of which the following is a specification.

My invention relates to an improvement in window-shade adjusters, in which the use of cords, pulleys, or other means of nondurable character and subject to impairment by wear, is avoided and stable and durable means are provided to be operated by merely turning a handle in conveniently accessible position for the shade-adjusting purpose.

In the accompanying drawings Figure l is a view in elevation showing a window equipped with my shade-adjusting invention in its preferred embodiment.

Figure 2 is an enlarged broken section on line 22, Figure 1;

Figure 3 is a broken section taken at the line 3 on Figure 2;

Figure at is a broken and partly sectional view of the upper roller of my improved device, showing it to be formed, as preferred, of telescoping sections;

Figure 5 is a section on line 5-5, Figure 4, and

Figure 6 is a section on line 6--6, Figure 2, showing both of the sheathed spiral sidemembers of my shade-carrying and adjusting equipment.

The following description refers to my device in its operative position:

To the inner faces of the opposite sides of a window-frame 7 are secured, to extend vertically thereon, the respective sheathing tubes 8 and 9, each closed at its lower end and having its upper end surmounted. by a box-like housing 10 provided with a flange or attaching element 11, through which it is fastened in place to the frame 7, as are V the caps 11 at the lower ends of the vertical tubes through the flanges or attaching elements 11*. Similar spiral shafts 12 of rod or wire material as shown, rotatable in the tubes, have their .upper ends fastened to the stems or stub shafts 13 of miter-pinions 13, j ournaled in suitable bearings 11 which are the lower walls of housings 10 and which at the zones of contact with tubes 8 interfit into the latter, as shown in Fig. 3. The

1923. Serial No. 640,385.

lower end of the spiral in the tube 9 is fastened to a stud or stub shaft 14 journaled in the cap thereon ig. 1). The lower end of the spiral in the tube 8 is fastened to the end of a stem or drive shaft 15 journaled in the adjacent cap and extending at its lower end through the top of a housing 10, wherein it carries a miter-pinion 13, this housing being also secured in place on the lower part of the window-frame through a flange 11 A miter-pinion 18, to mesh with that in the housing 10, is carried by a rotatably supported shaft 16 extending into the latter through a side thereof, beyond which it has bearing in an adjacent bracket 17 on the window-frame and carries a crankhandle 16 on its outer end. A transverse shaft or roller 18 extends along the under face of the top of the window-frame, and carries on its opposite ends similar miterpinions 13, like those hereinbefore named, in the housings 10, respectively meshing with the other pinions 13 therein.

I prefer to form the roller 18 of telescoping sections to enable its length to be adjusted for different widths of windowframe, the section 18 being shown solid and provided with a longitudinal groove 19, and the section 18 being tubular to telescopically receive the solid section and provided with a stud 19 to enter the groove 19 for guidance in adjusting the length of the roller. The pinion on the tubular end of the roller 18 is on a stem 13 pinned at m (Fig. 3) to the tube to turn with the roller.

The equipment thus described is primarily intended for raising and lowering a shade 20 on a roller 20 of the well-known Hartshorn type, and carried for the purpose by the spirals 12. Though if desired, as when such roller becomes impaired, or is not used, or for any other reason, the shade may be fastened, for raising and lowering it, to the roller 18.

To adapt the spirals to carry a roller 20 of the aforesaid type, I provide on each a bracket, like that shown most clearly at 21 in Fig. 2, comprising a tube 21 provided with an indentation forming a tooth 21 to engage the spiral, the tube having an ear 21 projecting from it through a longitudinal slot 23 in the spiral-sheathing tube, the ear of one of these brackets being provided with a slot 24 to receive and confine the flat proiecting end-stud 25 on the roller, and that of the opposite bracket containing a hole, indicated at 24 in Fig. 6, for journaling the stud 25 projecting from the opposite rollerend.

With a shade 20 supported as represented in Fig. 1, turning the handle 16 in clockwise direction causes the rotating spirals to raise and in the opposite direction to lower the roller 2O with the shade to any desired position,.since the gearing operates to rotate both soiral-s uniformly in relatively opposite directions owing to their being gearconnected by the roller 18; and in any position to which the shade-roller 2O is thus brought, the shade may be manipulated, in

V the usual manner when carried by the Harts horn type of roller, to effect raising and lowering thereof to desired extent.

Of course, Where the roller 20 is dispensed with and the shade is suspended from the roller is, the handle 16 may be operated to lower the shade as Well as to raise it.

I realize that considerable variation is possible in the details of construction herein shoWn and described and I do not intend to limit my invention thereto except as pointed out in the appended claim, in which it is my intention to claim all the novelty inherent in my invention as broadly as permissible by the state of the art.

I claim:

VVlIlClOW shade adjusting mechanism comprising a sheathing tube member disposable at the side of a Window frame, a housing member surmounted on said tube member and having an attaching element extending therefrom, one of the members at the zone of contact having a bearing Wall, a gear Wheel disposed in said housing member and having a stub shaft 3ournaled 1n said hearing Wall and depending below the same into said tube member, a transverse shaft in driven relation to said gear Wheel and journaled in said housing, a cap at the lower end of said tube'member having an attach- JAMES W. DAWSON. 

